--- missing.h
+++ missing.h
@@ -24,7 +24,7 @@
 
 /* Collect together some declarations that might not be present on
    some systems */
-
+#if 0
 #ifndef HAVE_STRDUP
 char *strdup (const char *s1);
 #endif
@@ -50,3 +50,4 @@
 #endif
 
 #endif
+#endif